FIL::fptr - syntax, references, description

References

Location	Referrer	Text
ff.h:159		FSIZE_t fptr; /* File read/write pointer (Zeroed on file open) */
ff.c:3467	f_open()	fp->fptr = 0; /* Set file pointer top of the file */
ff.c:3473	f_open()	fp->fptr = fp->obj.objsize; /* Offset to seek */
ff.c:3530	f_read()	remain = fp->obj.objsize - fp->fptr;
ff.c:3534	f_read()	rbuff += rcnt, fp->fptr += rcnt, *br += rcnt, btr -= rcnt) {
ff.c:3535	f_read()	if (fp->fptr % SS(fs) == 0) { /* On the sector boundary? */
ff.c:3536	f_read()	csect = (UINT)(fp->fptr / SS(fs) & (fs->csize - 1)); /* Sector offset in the cluster */
ff.c:3538	f_read()	if (fp->fptr == 0) { /* On the top of the file? */
ff.c:3543	f_read()	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
ff.c:3590	f_read()	rcnt = SS(fs) - (UINT)fp->fptr % SS(fs); /* Number of bytes left in the sector */
ff.c:3596	f_read()	mem_cpy(rbuff, fp->buf + fp->fptr % SS(fs), rcnt); /* Extract partial sector */
ff.c:3631	f_write()	if ((!_FS_EXFAT \|\| fs->fs_type != FS_EXFAT) && (DWORD)(fp->fptr + btw) < (DWORD)fp->fptr) {
ff.c:3632	f_write()	btw = (UINT)(0xFFFFFFFF - (DWORD)fp->fptr);
ff.c:3636	f_write()	wbuff += wcnt, fp->fptr += wcnt, fp->obj.objsize = (fp->fptr > fp->obj.objsize) ? fp->fptr : fp->obj.objsize, *bw += wcnt, btw -= wcnt) {
ff.c:3637	f_write()	if (fp->fptr % SS(fs) == 0) { /* On the sector boundary? */
ff.c:3638	f_write()	csect = (UINT)(fp->fptr / SS(fs)) & (fs->csize - 1); /* Sector offset in the cluster */
ff.c:3640	f_write()	if (fp->fptr == 0) { /* On the top of the file? */
ff.c:3648	f_write()	clst = clmt_clust(fp, fp->fptr); /* Get cluster# from the CLMT */
ff.c:3701	f_write()	fp->fptr < fp->obj.objsize &&
ff.c:3708	f_write()	wcnt = SS(fs) - (UINT)fp->fptr % SS(fs); /* Number of bytes left in the sector */
ff.c:3715	f_write()	mem_cpy(fp->buf + fp->fptr % SS(fs), wbuff, wcnt); /* Fit data to the sector */
ff.c:4052	f_lseek()	fp->fptr = ofs; /* Set file pointer */
ff.c:4058	f_lseek()	if (fp->fptr % SS(fs) && dsc != fp->sect) { /* Refill sector cache if needed */
ff.c:4083	f_lseek()	ifptr = fp->fptr;
ff.c:4084	f_lseek()	fp->fptr = nsect = 0;
ff.c:4089	f_lseek()	fp->fptr = (ifptr - 1) & ~(FSIZE_t)(bcs - 1); /* start from the current cluster */
ff.c:4090	f_lseek()	ofs -= fp->fptr;
ff.c:4106	f_lseek()	ofs -= bcs; fp->fptr += bcs;
ff.c:4109	f_lseek()	if (_FS_EXFAT && fp->fptr > fp->obj.objsize) { /* No FAT chain object needs correct objsize to generate FAT value */
ff.c:4110	f_lseek()	fp->obj.objsize = fp->fptr;
ff.c:4126	f_lseek()	fp->fptr += ofs;
ff.c:4134	f_lseek()	if (!_FS_READONLY && fp->fptr > fp->obj.objsize) { /* Set file change flag if the file size is extended */
ff.c:4135	f_lseek()	fp->obj.objsize = fp->fptr;
ff.c:4138	f_lseek()	if (fp->fptr % SS(fs) && nsect != fp->sect) { /* Fill sector cache if needed */
ff.c:4488	f_truncate()	if (fp->fptr < fp->obj.objsize) { /* Process when fptr is not on the eof */
ff.c:4489	f_truncate()	if (fp->fptr == 0) { /* When set file size to zero, remove entire cluster chain */
ff.c:4501	f_truncate()	fp->obj.objsize = fp->fptr; /* Set file size to current R/W point */